SARATOGA SPRINGS — Ramon Dominguez was nearly unstoppable at Saratoga Race Course this summer, until he walked back to the jockeys' room after winning the Grade III Saranac aboard Unbridled Command on Sunday afternoon.

Dominguez halted several times to sign autographs and pose for pictures with fans, who followed the Venezuelan rider from the winner's circle, under the clubhouse and through the backyard.

Bystanders applauded as Dominguez passed by because he'd just made Saratoga history in more ways than one.

Dominguez won six races on Sunday, tying the Spa single-day record for the second time this year. And in doing so, the reserved, polite jockey also broke the Saratoga meet standard with 66 victories.

He surpassed John Velazquez, the recently inducted Hall of Famer, who had 64 wins in 2004.

"It's a place where you want to win any race and talking about breaking records it just feels great." Dominguez said. "I just feel very lucky to have the support and am continuously able to ride good horses. We try to do our job — sometimes it's not good times other times it pays off. It's just been a great meet where everything has worked our way."

Dominguez broke Velazquez's mark on the 39th day of a 40-day meet. Velazquez accomplished his feat when the meet still lasted 36 days.

Dominguez also won six races in a day on July 22. Before that, Velazquez was the only rider to do it — on Sept. 3, 2001 — at a racetrack that opened in 1863.

"I'll be sleeping with a big smile on my face, for sure." Dominguez said.

For good measure, Dominguez clinched his second Saratoga riding title, previously winning in 2009.

He came into Sunday with 60 wins, needing five to overtake Velazquez's record.

He did it with 4-1 Cue the Moon in the second, 2-1 Native Wave in the fourth and four successive wins from the sixth through ninth with 4-1 World Premier, 2-1 Shakeira, 2-1 Temper in Command and 10-1 Unbridled Command.

"I'm very excited." Dominguez said. "I knew that I was within (four) wins of tying the record. It's something I'd think about once in a while, especially as we're getting closer to the end. I thought it would be neat to tie the record with Johnny, or if we had a chance to break it, even better. It caught me by surprise to do it all today."

Dominguez got six wins for six different trainers, including Tom Bush, who saddled long shot Unbridled Command in the Saranac.

"I actually think the horse would have been 15-1 or 16-1 if it wasn't for Ramon riding." Bush said. "You're always in good hands in the big races when you can get the top riders, and he's obviously the best."

Dominguez made a powerful stretch run with the gray Unbridled Command, a 3-year-old colt, to take the Saranac.

"The horse wasn't the favorite, so I was really focused on giving him the best ride I could and getting the most out of him." Dominguez said.